Calculating-machine.



No. 859,552. PATENTED JULY 9, 1907. E. s. ENSIGN.

CALCULATING MACHINE.

APPLIOATION FILED SEPT.2Z.1906.

4 SHEETS-SHEET l.

Inventor. WLtTLG'SSES PATENTBD JULY 9, 1907.

4 SHEETS-SHEET 2.

E. S. ENSIGN. CALCULATING MACHINE.

APPLIOATION FILED SEPT.22,1906.

PATENTED JULY 9, 1907v E. S. ENSIGN.

CALCULATING MACHINE.

APPLICATION FILED SEPT.22, 1905.

4 SHEETSSHEET 3- Inventor: S Ema Witnesses.

E771 0 r9 /im A ttorney.

- chines bfut whichwere made as improvements upon UNITED ,STA'IES'PATENT FFIO EMORY SJENSIGN, or CAMBRIDGE, MASSACHUSETTS, AssieNon TOENSIGN MANUFACTURING-COMPANY, OF .BosToN,MAssAoHUsETTs, A CORPORATION'OF MASSACHUSETTS.

CALCULATING-MACHINE To all whom it may concern: f

Be it known that I, EMORY S. ENSIGN, a citizen of the United States,residing at Cambridge, in the county of Middlesex and State ofMassachusetts, have invented certain new and useful Improvements inQalculating- Machines, Of which the following a 'specincation, referencebeing had therein to the accompanying draw- My invention relates tocertain improvements which may be applicable to manykinds of calcula ngmathe machine having a swinging rotatable meter shown in my UnitedStates Letters 'Patent Number 773,632, issuedNovember 1st 1904, andnumbered 809,047, issued January 2nd, 1906. l

Said improvements relate particularly to stop motion devices to preventover-rotation in which each indicator wheel of the meter is adapted tobe unlocked as that indicator wheel reaches the. teeth of its series ofactuating disks and remains unlocked until the last tooth which wouldoperate it has been passed when it is arrested and automatically lockedduring its period of rest and while the other indicator wheels of themeter are passing the teeth of their respective disks but are. adaptedtobe unlocked when necessary to be operated by thecarrying device andagain instantly relocked.

A further object of the invention is the providing of a simple, cheapand effective carrying device particularly designed to be used in amachine built along the lines of the aforementioned patents.

The invention consists in the combination of ele Jnents and in certainparts of novel construction entailed in the combination ofsaid elementsto obtain the desired result.

A full understanding ofmy invention can best be given by a detaileddescription of a preferred construction embodying the variousfeatures'of my invention,

and such adescription will now be given in connecrying device in itsuppermost position just after it has carried iorward the indicator wheelone movement and showing the indicator wheel as locked. Fig. 2 is a side'elevation ofthe same with the carrying device at nearly its lowestposition. 3 is a plan view of the parts shown in Fig. '1. Fig. 4 is aside view of the pawl shown in dotted lines in Fig. 2. Fig. 4 is a planSpecification of Letters Patent. Application filed September 22, 1905.Serial No. 279.380.

Patented July 9, 1907.

left, with the casing removed, of my calculating machine upon which theimprovements are used. Fig. 6 is a side elevation from the right of thethrow-bar.

side view of one of the indicator-wheels and cam. Fig. 9 is asectionalview of the same on the line 9 9 of Fig. 8. Fig. 10 is a sideelevation of the lever plate. Fig. 11 is a plan view of same. Fig. 12 isa side view-of part of the carrying device. Fig. 13 is a plan view ofsame. Figs. 14 to 27 are detail views of some of the other parts. Fig.28 is a front elevation of my machine with the front portion of thecasing removed.

Latitude is allowed herein as to details, as they may be changed orvaried at will without departing from the spirit of my invention and thesame yet remain intact and be protected.

Corresponding and like parts are referred to in'the followingdescription and indicated in all of the views of the drawings by thesame reference characters.

In the drawings, the numeral 30 (see Fig. 5) repre sents the base of thecalculating machine upon which the side walls and cover portions aresupported and from the forward portion of which extends the upwardcurved front cover portion 31 which supports the secondary cover 32 forpartly protectingthe shanks of the primary keys 38 and which extendpartly ,reatward forming a seat for the glass lid 34 pivoted to the rearcover portion 33.

Within the casing are several series of disks 38, the series shown inFig. 5 being the tenths disks or next to the last series met by themeter during its revolution around the inner peripheries of the disks,each series comprising nine disks having from one to nine teeth 37respectively, each disk 38 being thrown by a finger lever 38 from itsnormal position into Operable position to be met by the teeth 49 of theepicycle meter 41 as it is carried around the inner periphery of ingshaft 44. Each series of disks are held between side plates 35 as shownin Fig. 5.

In the drawing I have shown the indicator 36, the lever 39 for releasingthe disks, the resetting lever 40 to instantly reset the meter 41 andindicator 36 back to their initial positions, after the same have beenoperated, all of which have been shown and explained in my priorpatents. Extending outward from the driving shaft 44 are arms 43 inwhich is mounted the shaft 42 carrying the meter 41. Attached to theleft side of each plate 35, of each series of disks 38 is a throw bar 45attached by screws or rivets through the holes 46; this throw bar havingthe same radius as the disks and is cut away at its lower view of thesame. Fig. 5 is a side elevation from the Fig. 7 is a rear elevation ofthe same. Fig. 8 is a leit portion as at 47 for throwing out the throwpin 64, releas;

ing the respectiveindicator wheel 41 to bemet by" that series of teeth37, so that the teeth 37 will cause the wheel to revolve according tothe number of-teeth upon the disk thrown out, only one disk of eachseries being thrown outat a time. The throw bar 45 is also pro} vidednear its upper inner'part with. the finger-48 to again throw in thelever pin 64 through the slot ,48 so that the wheel will intsan tlybecomelockcd after the wheel has passed the last tooth and over-rotationof the meter prevented.

its studpin 61 which passes downward through the.

.' nally upward ,-as clearly shown in' Fig. 23, having at its Extendingacross between the arms 43 andfcarried by'them just below; the meter 41is the plz ttiorm' 43 upon which is supp onted plates by screwsextending through the screw holes 57 58, (see Fig. 11) and fromwhichplateextends upward at right anglesto it the plate '51 having aforward extending arm 52 carrying a hub 53. Extending inward from thearm 52 is the stop pin 56 to limit the forward movement of the carryinglever 73. The'p1ate51- is also provided with an opening through whichextendsthe shaft42 of the meter so that a plate 51. is between eachwheel of the. 5 meter. The plate 5115 also provided with a smalleropening 54 for receivin'g the screw stud 101.

Supported on the hub 53 is a-hub 60 held in place by opening 59 ofthehub 53 and its lower portion extendingthroughtthe opening in the hub68 of the, lever G9'to, which hub it is made fast so that movement ofthe swinging arm 62 to the right willswingto the right the lever 69 orvice versa, as hereinafter stated. The hub 80 carries a swinging armorlever 62 extending diagoouter enda-hub 63 in which is held a lever orthrow'pin 84 extending above the Y hub 63 'and also "extending below thehuh as at 66. The swinging arm .62 has also atits upper end a plate ordetent 65 attached to or made integral with ityas shown in Figs.'.3, 24and 25 and for the purposes hereinafter stated. The swinging arm 62,

which normally holds its meter wheel 41'againBt forwardfrot ation by.its plate 65,'is adapted, when the.

ineterfll is'revolved' around the inner eripheries of the disks by thedriving shaft 44, to swing to the right byth e throw pin 64 comingin'con'tact with the throw bar 45 thus unlocking the wheel and allowingit to re-' volve on its shaft 42 The lever 69'is also adapted to bemoved to the right by the plate 1032s hereinafter in extremeupwardpositio'n'by a spring 76 attached to'the stud pin of the carryinglever 73 and supported a by the screw 77-inser'tedinto'the lower plate50. The

stud pin 750i the oarryiuglever 73 extends quite a distance to die riht, ee 13, sqtliat the carryi'ng lever 73 is operated by'the cainl109 onits respective'right hand wheel of the meter/so that as this wheelisrefi volve'd from l eft'to right as its ,teeth 49 come in contact with'i'ts=i'espective disks teeth the carrying lever 73 is gradually forcedbackward and downward by the (ram 109 until it has reached its extremedown ward and backward position, as will be understood by examiningFigs. 1,. 2 and '8 at which time the stud. 75

stud is then forced up the portion *110 by the carrying lever 73 beingcarried upward bythe force of the spring 76'at whichtime the carryinglever 73 carries forwarda distance of one tenth of its circumference thewheel 41 on its left, it beingrememhered that the upward v movement ofthe carrying lever 73 is towards the operator when the meter is in itsnormal position. This has reached. the outermost position of the cam andthe I carrying lever 73 is cut away, as shown in Fig. 12,. so as not to"come in contact with the shaft 42 or the plate 103 durlng'a ny portionof its movement and-is provided with the two studs78and 92, with acircular opening 93 on-itsjorward part; 73 and has an elongated recessit is also'provided with' the hub 79 made-integral'. with it havingtheopenings8l through which is inserted a pin securing the lever 84 throughthe opening'83 provided in the hub 82.- This lever 84 is also providedwith the projection 86 carrying a pin 85. The lever 84 is normally heldagainst a tooth 49 of its corresponding againstthe head ofthe'projection 86, but the lever 84 is prevented from passing clearthrough the opening 80 of the carrying lever 73 and against. the side'ofthe wheel 41 by the pin coming in contactwith the sideoi the lever 73,but it will be seen by examiningFig. 3 that the free end of this lever84'i's'obliged to extend quite a distance towards jthe left beyond theportion 73 in order .to meet theprojecting portion of the tooth 49 ofthe :wheel 41, see Fig. 1, by ajspring87 secured atone end to thecarrying lever 73 and having its iree end pressing meter 4] It willbereadily seenthat the backward movement ofth'e carrying lever 73 by the.riding of the stud pin 75 over the surface of'the cam' 109,d0es notaffect the wheel 41-as the lever 84 is merely for'cedbackward againstits spring 87 by the forward moveinentjof the wheel. As the carryingdevice pushes the wheel around from the position in 'to the position InFig. 1, the tooth'49 is brought against the plate 65 of the swinging arm62 which acts as a stop to prevent over-rotation. -"Kt the same tilnethe forward part 73 of the carrying lever 73 strikes against the stoppin 56 instantly stopping the forward movement of the carrying lever73'.

On the forward portion 73 oi the carrying lever 73 is alever 88 pivotedon a stud 111 extendingthrough' its opening 89 .andintothe opening 930ithe carrying lever and there is also pivoted on theouter portion of thisstud. 111 and against the lever 88 a hub 98 having a pin' 100 made asshown in Figs. 21- and 22 and normally held in contact againstthe raisedportion 96 0f the lever 88-by a spring 94 attached at one end to itshead 95 and at the other .endto the stud 90 at the opposite outer end'of the lever 88; Also attached to this stud 90 is a: spring91,attached'at its other end to the stud 92 of, the carrying lever 73so1tha't the lever 88 its 'upper end 96 normally held in its uppermostpositionwhilethe opposite end which carries the stud son normallyhelddownward against the stud 78 extending outward from theearrying lever-73. The end of the lever'88 having theraised' portion 96 is also inclinedor beve led away as at 97 so as to easily and quickly throw out theswinging arm 62 when the carrying levermoves forward. by force of itsspring 76 as the stud pin 2. 5 goes upthein'clinellll of the cm .109 andthe lever 84 carries forward one position the wheel 41 and this swingingarm is thrown out only a short time, that is while the lower portion 66is passing up the incline 97 and over the raised portion 96 when it isimmediately throtn into locking position to meet the tooth 49 andprevent over-rotation, so that the wheel 41 can only be moved one placeon each full movement of the carrying lever 73 moved by the earn 109 onits next adjoining wheel 41. It is also readily seen that as thecarrying lever 73 is moved backward that the downward extending portionof the swinging arm 62 comes in contact with the pin 100 and the pin isforced forward and against the force of its spring 94, the pin pushingthe head 96 of the lever 88 forward against the force of its spring 91which spring carries backward the lever 88 and the pin 100 as soonas-the swinging arm has cleared the head 96. The pin 100 has a widerface (see Fig. 22) than the raised portion 96 of the lever 88 (see Fig.18) and is wider than the swinging movement of the outer end of the arm62 so that when the carrying lever 73 is moving backward step by step(having ten distinct backward movements corresponding to the,

ten movements of the Wheel 41 carrying the cam 109 that operates it) andreaches the point when the lower portion 66 of the throw pin 64 strikesagainst the pin 100 and presses this pin 100 and the lever 88 forwardagainst the force of the spring 91, that even though the wheel 41 has bymovement of the driving shaft 44 reached its series of toothed disks,and its swinging arm 62 has been moved to the right by the throw bar---45 acting upon the throw pin 64 the portion 66 will still be pressingthe pin 100 forward. This is necessary, because if the pin 64 had beenpushed by the throw bar 45 to the right, while the carrying lever was atthis place, and then thrown in by coming in contact with the finger 48',the portion 66 might strike upon the head of the portion 96 remainingthere so that the detent would not reach the tooth 49 and preventoverrotation.

The shaft 42 is cut away as at 102 to receive the pawl 105 attached tothe wheel by a screw passing through its opening 106 and into the wheeland normally held in a downward position-by a spring 107 and this pawl105 is adapted to fall into the slot 102 of the meter shaft 42 so thatits respectivawheel 41 will be carried backward to its initial positionwhen the lever 40, shown in-Fig. 5 and explained in my previous patent,is operated.

Between every plate 51 and the wheel 41' to its right upon the shaft 42is the plate 103 having a cut away portion 108 with beveled edges 104slanting inward to the opening towards said plate 5], which opening isadapted to receive the pawl 69, which has its sides inclined or curvedas shown in Fig. 16 so that this plate 103, which is turned by the shaft42 will slide the lever 09 up onto it thus throwing the lever (59 to theright against its spring 71 and throwing the swinging arm 62 and itsthrow pin 04 to the right so that the teeth of he wheel 41 will bereleased and allowed to be turned to its initial position by the lever40, so that all of the figures naught of the several wheels of the motorwill show upon the reading line. i have also provided a spring 28,attached lo the plate 50 extending upward and adapted to I)l'i\'(llibackward rotation of the fur-tel 4 i.

nation, so that the last teeth-to be met would be the teeth of the unitsdisks, and it is thus 'seen that the I teeth shown in 5 would be theteethj'of the tens disks. It is preferable-to have the'several series ofdisks follow this order so that, if the forward movement of the carryinglever 73 is slower than the movement of the meter when revolvedby itsdriving shaft and .rotated by its teeth 49 meshing with the teeth 37 ofthe disks, there will be no lost movement caused by a partial movementof the carrying lever while the wheel 41, to which a numberwas beingcarried by the lever, is being rotated by the teeth of the disk.

It is understood that my invention is not limited to the specificdetails of construction shown in the accom I panying drawings, but thatsaid details may be varied in the practical carrying out of myinvention. It is also to be understood that the combinationsspecifically set forth in the several claims are intended to beseparately claimed without limitation to the use in connection therewithof other features and details of construction illustrated.

' Having thus dcscibed my invention, I claim as new and desire to secureby Letters Patent:'-

1 A 'c.-ilculnting-meter. having 11 plurality of wheels, locking menusfor the wheels, segments having inwardly projecting teeth arranged to beprojected as desired, a driving shnft without the meter for swinging itin a circle against the teeth, and menus adjoining the teeth forrelensing the locking menus while the wheel is being operated by theteeth.

2. A calculating-meter comprising several indicator wheels, lockingmeans for ench wheel, several sets of toothed segments. a driving shnftwithout the meter for swinging it against the teeth and a throw buradjoining each set of segments for throwing out the locking menus of thewheel to be operated by that set of segments.

3. In n cnlculnting-mnchine, 11 meter having a plurality of wheels,rotating means for the wheels of the meter, a driving shaft without themeter for swinging it in a circle around the driving shaft and againstthe rotating means, locking means for each wheel of the meter, meansadjacent to'ench rotating menus for throwing out of contact the lockingmeans of the wheel to be operated and means for throwing in the samelocking menus immediately after the wheel has been operated.

4. In a cnlculating-mncliine, a meter-having a plurality of wheels, aswinging arm for each wheel for locking the wheel against rotation, aseries of toothed segments. means for operating the segments. a shaftwithout the meter for swinging it ago-inst the operated segments. andmeans adjacent to the tecih of the segment for operating the swingingarm and allowing free rotation of the wheel.

in a calculating-machine nn eplcycle meter having :1 plurality 'ofwheels. inwnrdly-projected teeth to he met by the meter as it revolves.a swinging arm adjacent to each who-cl oi the meter-for, locking thewheel, :1 pinto :idjflilh in; the teeth. n. throw-bur attached 1othe-pinto for disengaging the swinging lirm of the wheel to be operated,snld throw-bur lmv imt its lower edge inclined, :i finger projectingfrom its upper edge and a slot adjacent to the finger, ubstantially asshown and described.

0. In n cnlcnlniingmnchine un epicycle motor having :l. plurality oi.wheels, inwardly-projected toothed disks to be met by the meter :Is itis revolved, :1 carrying lever for wheels forward to initial positionand swinging arms act-.' ing as positive stop motions for preventingover-rotation of the wheels under the impulse of the resetting means. 8.In a calculating-machine, a shaft provldedwith; a

,slot, :1 meter having a series of indicator-wheels, a pawl on eachwheel, a swinging arm for eachwheel for locking it against rotation, alever for each arm for unlocking the arm and a plate locked upon theshaft for each lever and adapted to operate the lever as the shaft isrevolved; whereby each wheel may be reset to initial position by its,

pawl coacting with the slotted shaft, substantially 'as shown.

I l 9. In a calculating-machine, a meter having a series of.

indicator wheels, segments having .inwardl y projecting teeth arrangedto be projected as desired, a driving shait without the meter forswingingit in a" circle against the teeth and positively acting swingingarms acting as stops upon each wheel for preventing over-rotatiomundertheimpulses caused by said meter being swung by its driving shaftagainst the toothed segments.

10. In a calculating-machine, an. epicycle meter having a series ofindicator-wheels, carrying mechanisms for the wheels of the meter, :1series of toothed segments against ,one or more of which the meter isadapted to be rotated after they have been operated, positively actingswinging arms acting asstops upon each wheel for preventing overrotationunder the aptuations caused by the carrying mechanisms or under theimpulses caused by said meter being rotated against thetoothed segments.

11. In a calculating-machine, an epicycle meter'having a plurality ofwheels, means for operating the meter, carrying mechanisms for thewheels, resetting means, positively acting swinging arms acting as stopsupon each wheel for preventing over-rotation tinder impulse of theoperating means or under actuations caused by the carry ing mechanismsor resetting means.

12. In a calculatingmachine, one or more series of disks provided with one or more teeth in their inucr peripheries each series having theirteeth in a different position from each of the-other series on the innerperipheries of the disks. means for throwing in the teeth of one or moredisks as desired, a meter having a plurality of wheels and adapted to berevolved around the inner peripheries of the disks against the teeth ofthe operated disks, means for independently locking each wheel of themeter, means for unlocking each wheel as it reaches the series of theteeth that would operate it and allowing it to be operated by the teeth,means for resetting the locking means as soon as he wheel has passedthis series of teeth, a carrying lever for each wheel of the meter, acam on each wheel of the meter for operating a carrying lever, means oneach carrying lever for unlocking its wheel toallow free movement of thewheel in carrying up, means for resetting the meter to zero, and meansfor unlocking the meter while it is being reset.

g 13. In a calculatingemachine, a driving-shaft, a frame carried by theshaft, a meter journaled in the frame, swing ing arms carried by the frame acting as positivestops for preventing over-rotation, and springscarried by the frame for throwing the arms into engagement. I

1.4. in a calculating-machine, a drivingsllaf't, a frame carried by theshaft, a meter journalcd in the frame and having a plurality of wheels,plates carried by the frame andseparating the wheels of the meter,swingingmrms pivoted on each plate for preventing over-rotation, camplates carried by the shaft, a lever carried by each arm and adapted toactuate the armwhen it isopcrated by the cam plate, and, a springattached to the plate for keeping the lever in engagement with the camplate. 15. In a caiculating-mach-inea driving-shaft, a frame carried bythe shaft, a n epicycle'mct r journalcd in the frame and having aplurality of wheels, carrying-levers pivoted onthe plates, studsprojecting from the carrying,

levers; cams carried by the 'wheels of the meter in contact with theadjoining studs, springs for the carrying-levers carried by the platesadapted to throw up the carrying levers after they have been moved bythe cams to their extreme downward positions and a spring pressed lever84 pivoted to each carrying-lever for forcing one of the meterwheelsforward as desired, substantially as shown.

vments, a driving shaft, a frame carried by the shaft, a meter on theshaft provided witha plurality of wheels, carrying levers pivoted ontheframe for each avheel of the meter, swinging arms provided with detents(55 acting asstops upon each -whe'el for preventing over-rotation, aspring pressed lever 84, a pivoted lever 88 having a head 96 andinclined edge 97, and'a pivoted pin 100 adapted to press against thehead 96 all carried by the carrying-lever, as and for 'the purposesdescribed.

17. In a calculating-machine, a drivingshaft, a. frame carried by thedriving-shaft, a meter journalcd in the frame and having a'plurality ofwheels, toothed 'disks, means'for operating the disksto be met by themotor as ,it is rotated around the inner edge oi; the disks by itsdriving-shaft, swinging a rms carried-by the frame and. provided withfingers to stop over-rotation or the meter wheels, throw bars for eachset'of toothed disks, a throw pin on each swinging armto be met by t,hebar as the meter is rotated by the driving shaft, a spring carried bythe frame for throwing the finger into engagement with a tooth of themeter wheel and keeping the throw pin in its normal position, acarrying-arm pivoted to" the frame, a stop-pin-for the forward movementof the carrying-arm, a spring pressed ]ever.S4 pivoted to thecarrying-arm and a pivoted spring pressed lever for throwing out theswinging arm suificiently-on the upward movement of the carrying-arm toallow the lever 84 to rotate the meter \vhcel one position,substantially as shown anddescribed.

In testimony whereof of two witnesses.

EMORY S, ENSIGN.

- Witnesses:

CHARLES INA. SMITH, SADIE E. Powers.

16. In a calculating-machine,a series of toothed scg-.

I affix my signature in presence

